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    <script>

        function Star(name, age) {
            this.name = name;
            this.age = age;
        };
        Star.prototype

        const ldh = new Star('刘德华', 18);
        console.log(ldh.__proto__.__proto__);
        console.log(Star.prototype.__proto__ === Object.prototype);//true
        console.log(Object.prototype.__proto__);//null
    </script>
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